class Test:
    def process_data(self, data=[]):
        data.sort()
        data.append("End")
        return data


test1 = Test()
print(test1.process_data())

test2 = Test()
print(test2.process_data())

test3 = Test()
print(test3.process_data(data=["Name:123", "Age:34"]))

test4 = Test()
print(test4.process_data())
